Breg (river)
Appearance

The Breg is a river in Baden-Württemberg, Germany. It is the main headstream of the Danube. The river is 46 km (29 mi) long.
The Breg rises at an elevation of 1,078 m (3,537 ft), six kilometres northwest of Furtwangen. It joins with the Brigach in Donaueschingen to form the Danube.